418  
CDUS43 KLSX 190727  
CLISTL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE ST LOUIS MO  
227 AM CDT THU SEP 19 2024  
   
...............................
 
 
   
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 18 2024
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1874 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 91 153 PM 97 1925 80 11 81  
MINIMUM 63 415 AM 42 1973 60 3 56  
AVERAGE 77 70 7 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.04 2001 0.10 -0.10 0.00  
MONTH TO DATE 0.08 1.86 -1.78 0.32  
SINCE SEP 1 0.08 1.86 -1.78 0.32  
SINCE JAN 1 31.76 31.53 0.23 25.32  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2015 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 3 6 -3 0  
SINCE SEP 1 3 6 -3 0  
SINCE JUL 1 3 7 -4 0  
 
COOLING  
YESTERDAY 12 6 6 4  
MONTH TO DATE 158 155 3 150  
SINCE SEP 1 158 155 3 150  
SINCE JAN 1 1866 1605 261 1720    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 3.0  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 73 700 AM  
LOWEST 30 200 PM  
AVERAGE 52  
   
......................................................
 
 
THE ST. LOUIS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 96 1925  
1931  
1955  
MINIMUM TEMPERATURE (F) 60 42 1938  
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2024.....SUNRISE 647 AM CDT SUNSET 702 PM CDT  
SEPTEMBER 20 2024.....SUNRISE 648 AM CDT SUNSET 701 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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